Sana Natori is a virtual YouTuber, or VTuber, who appears in the series 'Kizuna Ai: The Last Live 'hello, world 2020''. Known for her cheerful and energetic personality, Sana captivates her audience with entertaining livestreams and engaging content. She is a close friend of Kizuna Ai, the main character of the series, and plays a supportive role in Ai's journey. Sana's vibrant presence and positive energy make her an important and beloved character in the virtual world, as she helps to spread joy and connect with viewers globally.